See your eye doctor: For your symptoms of floaters you should see your eye doctor right away to see if it's the sign of a serious problem. As for your other symptoms, they should warrant some further testing.
I believe that it is correct to say that RNA is not replicated, but reproduced. DNA, what I know currently, is the only one that replicates itself.   Plus, to my knowledge, you don't need to copy a RNA strand.
Hence, the process proceeds in the 5' â 3' direction, like in DNA replication. However, unlike DNA replication, transcription does not need a primer to start and it uses base pairing to create an RNA copy containing uracil instead of thymine.